Fmoc-L-leucine, 99%

Name: Fmoc-L-leucine, 99%
Brand: Vaqora Chemicals
SKU: VQ-002274

About Fmoc-L-leucine, 99%

Fmoc-L-leucine is a protected amino acid in Biochemistry grade carrying the CAS registry number 35661-60-0, specified at 99% purity. With the molecular formula C21H23NO4, it has a molar mass of 353.4 g/mol. Its systematic (IUPAC) name is (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid. Common synonyms include N-(9-Fluorenylmethoxycarbonyl)-L-leucine and Fmoc-Leu-OH.

In its supplied form it is colourless or white powder or crystal or chunks. Key physical data: a melting point of 152-156 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span solid-phase peptide synthesis (SPPS), peptide drug discovery, medicinal chemistry and protein and peptide research. Buyers come mainly from academic and industrial research and diagnostics and biotechnology.

Available in 5 g, 25 g, 100 g and 1 kg packs, Fmoc-L-leucine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Solid-phase peptide synthesis (SPPS)
Peptide drug discovery
Medicinal chemistry
Protein & peptide research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Fmoc-L-leucine, 99%
Catalogue No.	VQ-002274
CAS Number	35661-60-0
IUPAC name	(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid
Molecular formula	C₂₁H₂₃NO₄
Molecular weight	353.4 g/mol
Exact mass	353.1627
Grade	Biochemistry
Purity / assay	99%
HSN code	29379020
InChIKey	CBPJQFCAFFNICX-IBGZPJMESA-N
SMILES	CC(C)C[C@@H](C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13
PubChem CID	1549133

Physical properties
Physical form	Crystalline
Appearance	Colourless or white powder or crystal or chunks
Melting point	152-156 °C
LogP (XLogP3)	4.4
H-bond donors / acceptors	2 / 4
TPSA	75.6 Å²
Synonyms	N-(9-Fluorenylmethoxycarbonyl)-L-leucine, Fmoc-Leu-OH, fmoc-leucine, N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-leucine, n-(fluorenyl-9-methoxycarbonyl)leucine, N-((9H-Fluoren-9-ylmethoxy)carbonyl)-L-leucine, Fmoc-L-Leu-OH, N-Fmoc-L-leucine, (((9H-fluoren-9-yl)methoxy)carbonyl)-L-leucine, (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpentanoic acid, (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methyl-pentanoic acid, (2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 35661-60-0

Cell Culture

Fmoc-L-leucine, cell culture tested

CAS: 35661-60-0
Formula: C₂₁H₂₃NO₄
MW: 353.4 g/mol

VQ-046289

Frequently asked questions

What is the CAS number of Fmoc-L-leucine, 99%?

The CAS Registry Number of Fmoc-L-leucine, 99% is 35661-60-0. It is also known as N-(9-Fluorenylmethoxycarbonyl)-L-leucine, Fmoc-Leu-OH, fmoc-leucine.

What is the molecular formula and molecular weight of Fmoc-L-leucine, 99%?

Fmoc-L-leucine, 99% has the molecular formula C21H23NO4 and a molecular weight of 353.4 g/mol. Its IUPAC name is (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid.

Which grade and pack sizes of Fmoc-L-leucine, 99% can I order?

We supply Fmoc-L-leucine, 99% in Biochemistry (99%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Fmoc-L-leucine, 99%?

Yes. Every lot of Fmoc-L-leucine, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Fmoc-L-leucine, 99% be shipped internationally?

Yes. Fmoc-L-leucine, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.